A ventilation device for the seat (2, 3) of a motor vehicle (1) which has an electrically driven fan (3, 5), the vehicle (1) having a solar cell arrangement (8) which, with the vehicle (1) turned off, provides a supply of solar generated power for operation of the fan (3, 5).
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11. motor vehicle seat ventilation arrangement comprising an electrically driven fan in at least one vehicle seat, and a solar cell arrangement for supplying electrical power to the fan of the at least one vehicle seat independent of a vehicle engine; wherein the solar cell arrangement is also connected to a motor vehicle blower for providing a fresh air feed into the vehicle; and wherein a control is provided which apportions the electric power from the solar cell arrangement between the fan and the motor vehicle blower.
1. motor vehicle seat ventilation arrangement comprising an electrically driven fan in at least one vehicle seat, and a solar cell arrangement for supplying electrical power to the fan of the at least one vehicle seat independent of a vehicle engine electrical system; further comprising a temperature sensor positioned close to a seating surface of a seat part of the at least one vehicle seat and control means connected to said temperature sensor for controlling the supply of electrical power from the solar cell arrangement to the fan as a function of seat temperature sensed by said temperature sensor.
9. motor vehicle seat ventilation arrangement comprising an electrically driven fan in at least one vehicle seat, a solar cell arrangement for supplying electrical power to the fan of the at least one vehicle seat independent of a vehicle engine, and a control means for controlling the supply of electrical power from the solar cell arrangement to the fan; wherein the control means is operative for controlling electrical power supply to the fan as a function of the incidence of sunlight on the seat; and wherein at least one light sensor is associated with the at least one seat and is connected to the control means.
10. motor vehicle seat ventilation arrangement comprising an electrically driven fan in at least one vehicle seat, and a solar cell arrangement for supplying electrical power to the fan of the at least one vehicle seat independent of a vehicle engine; wherein the solar cell arrangement is also connected to a motor vehicle blower for providing a fresh air feed into the vehicle; and wherein a control is provided for connecting the motor vehicle blower to the solar cell arrangement when a vehicle ignition is off and for disconnecting the motor vehicle blower from the solar cell arrangement when the vehicle ignition is turned on.
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3. motor vehicle seat ventilation arrangement as claimed in
4. motor vehicle seat ventilation arrangement as claimed in
5. motor vehicle seat ventilation arrangement as claimed in
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8. motor vehicle seat ventilation arrangement as claimed in
12. motor vehicle seat ventilation arrangement according to
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1. Field of the Invention
The invention relates to a ventilation device for the seat of a motor vehicle which has an electrically driven fan means.
2. Description of Related Art
Equipping motor vehicle seats with a heat-ventilation system which can only be operated via the vehicle electrical system with the ignition on is known,
Published German Patent Application DE 197 37 636 A1 describes a climate-controlled seat which has an air channel which runs roughly vertically in the middle zone of its backrest. A blower driven by an electric motor is located in the air channel near a top air outlet. Power is supplied to the electric motor via the motor vehicle battery.
Furthermore, published German Patent Application DE 35 40 353 A1 discloses operating a fan for ventilation and fresh air supply of the motor vehicle interior even with the ignition off by means of solar cells attached to the motor vehicle. With the motor vehicle turned off, heating of the seat, and especially of the body contact surfaces of dark leather seats caused by incident solar radiation, cannot be counteracted to the required degree or at all with the known devices.
Therefore, the primary object of the present invention is to devise a ventilation device for a motor vehicle seat which enables ventilation of the seat, and thus a reduction of the temperature of the body contact surfaces of the seat, even with the motor vehicle turned off.
This object is achieved in accordance with the invention in the initially mentioned ventilation device by the motor vehicle having a solar cell arrangement which, with the vehicle turned off, makes available solar power supply for operating the fan. Thus, seat ventilation can take place which allows reduction of the seat temperature to the interior temperature even with the engine off and ignition interrupted, and thus, independent of the motor vehicle electrical system. The solar power supply provides the required energy when the incident solar radiation leads to heating of the seats. The motor vehicle battery is not burdened.
In one feasible embodiment, there is at least one electrically operated ventilator or a blower for producing an air flow in the seat, the air flow being routed from the seat interior to the seat surface and/or the seat back and emerging via at least one opening of the seat or via an air-permeable area of the seat. By means of the blower, ventilator or fan contained in the seat, no special ventilation channels are necessary for supplying an air flow from a blower located outside the seat to the seat. By blowing onto the inside or bottom of the seat and/or back surfaces and the emergence of the air flow through openings or perforations formed therein, effective ventilation with temperature reduction of the corresponding seat or body contact surfaces of the seat is achieved. Cooling of the ventilation air by an air conditioning or climate-control system is unnecessary. The number and the output of the ventilators or the blower in the seat and/or the back are fixed depending on the required cooling or ventilation performance and the installation conditions.
Preferably, there is a control means which controls the solar power supply from the solar cell arrangement to the fan means or the ventilator or the blower. The control means can control the power supply individually, and as necessary, so that excess current can be used, for example, to charge the battery. The control means can activate the power supply especially with the ignition off, but can also turn it on with the engine running so that seat ventilation can be operated also when driving via the solar power supply.
In one preferred embodiment, the control means controls the solar power supply of the ventilator depending on the seat temperature and especially the surface temperature of the seat surface and/or the seat back.
Feasibly, it can be provided that the control means controls the solar power supply of the ventilator alternatively or in addition to temperature control depending on the sunlight incident on the seat, especially on the seat surface and/or the seat back.
Preferably, at least one sensor is associated with the seat and is connected to the control means, the sensor acquiring the control quantity of the control means. The sensor can be located on or in the seat or seat back or also spaced away from the seat for proximity measurement. For the described control, the sensor can be a temperature sensor or a light sensor, but sensors based on other measurement principles can also be used to control the seat ventilation.
When the solar power supply to at least one ventilator can be turned off by a manually operated switching means, for example, in winter, the ventilation can be shut off if heating of the seat by incident solar radiation should be desirable.
Preferably, the solar power supply additionally drives a motor vehicle blower for fresh air feed into the motor vehicle. Via the control means, the energy of the solar cells which is not needed by the seat ventilation means can be sent to this vehicle blower.
In one preferred embodiment, there are two ventilators under the seat surface and behind the seat back there is one ventilator. However, as mentioned above, other combinations are also possible, if necessary.
Preferably, the ventilator is a radial fan which works with good efficiency, but can also be an axial fan.
In the following, one embodiment of the invention is explained with reference to the accompanying drawings.
A motor vehicle 1, especially a passenger car, contains two front seats 2 in each of which there is a fan or ventilator 3 within the seat underneath the seat surface 4 and a ventilator 5 in the seat back 6. Each rotating ventilator 3, 5 blows an air flow from the seat interior against the seat surface 4 or the seat back 6 which are preferably made of leather and which have perforations for discharge of the air flow; but, a seat with a fabric coating of a large-pore, air-permeable material can also be used.
The ventilators 3, 5 are connected to a control means 7 which supplies power for the ventilators 3, 5 from a solar cell arrangement 8 which, for example, is attached on the motor vehicle roof 9 or is formed as a solar roof with an integrated solar module which has, for example, 28 solar cells. However, the solar cells 8 can also be attached or integrated on other body parts, for example, on the trunk lid, especially, when used on a convertible.
The control means 7 is connected to at least one sensor 10 for acquiring a control parameter. The control parameter is, for example, the seat temperature on the seat surface 4 or the seat back 6 and especially its surface temperature. To acquire this temperature, accordingly, there is a temperature sensor in or on the seat 2 or a temperature sensor in the motor vehicle 1 which measures the temperature in proximity to the seat. These temperature sensors can be provided both for the seat surface 4 and also for the seat back 6 for each of the ventilators 3, 5 and for controlling the respective power supply.
Alternatively, or in addition to at least one temperature sensor, a light sensor can be connected to the control means 7 and acquires the incidence of sunlight and especially direct solar irradiation of the seat surface 4 or the seat back 6. One such light sensor is, for example, a photocell which is attached or integrated in the area of the seat surface 4 or the seat back 6.
In the circuit of the ventilation device shown in
Depending on at least one control parameter which is acquired via at least one sensor 10, a variable control portion of the electric power produced by the solar cells 8 is delivered to the ventilators 3, 5 by the control means 7. Thus, when the position of the sun is low, when the sun is radiating intensively onto the seat back 6, and thus, the incident radiation is acquired, for example, with the light sensor 10 or solarimeter, the assigned ventilator 5 is supplied with power to the required degree in order to achieve the desired temperature reduction by the circulating air flow. If, due to the changing position of the sun, there is no longer direct incident solar radiation onto the seat, the energy produced by the solar cells 8 can be used for ventilation of the motor vehicle interior via the motor vehicle blower motor 15 instead of for seat ventilation.
By controlled adjustment of each seat 2 of the motor vehicle, the varied incident solar radiation can be considered in seat ventilation, and also the back seats in a passenger car, the seats of a truck or any other vehicle or the seats of a bus can be ventilated individually or also in a group connection.
With the ignition on (power through the line 12), the relay 11 switches the connection between the line 16 of the vehicle electrical system and the motor vehicle blower motor 15 so that the latter is separated from the circuit of the solar cells. By means of a blower controller 17, which is connected in between to the line 16 and which can be part of a climate-control system, the rpm of the vehicle blower motor 15 can be adjusted, for example, by preselection of a blower stage.
Ganz, Thomas, Rauh, Hans-Georg, Stöwe, Stefan
Patent | Priority | Assignee | Title |
10201039, | Jan 20 2012 | GENTHERM GMBH | Felt heater and method of making |
10314111, | May 02 2013 | GENTHERM CANADA LTD | Liquid resistant heating element |
10625643, | Jun 14 2017 | GENTHERM GMBH | Conditioning system with blower attachment system and method of attachment |
10710480, | Jun 14 2017 | GENTHERM GMBH | Conditioning system with blower connection assembly including a distribution member and method of attachment |
10890192, | Oct 10 2013 | COMAIR ROTRON US LLC | Externally programmable fan |
11285780, | May 07 2020 | Vehicle climate control assembly | |
11388814, | Feb 07 2017 | GENTHERM GMBH | Electrically conductive film |
11751327, | Feb 07 2017 | GENTHERM GMBH | Electrically conductive film |
12115835, | Sep 28 2018 | Dyson Technology Limited | Vehicle air conditioning |
12177967, | Feb 07 2017 | GENTHERM GMBH | Electrically conductive film |
6676207, | Feb 05 2001 | GENTHERM GMBH | Vehicle seat |
6692130, | Dec 04 2002 | Solar powered heating and ventilation system for vehicle | |
6786545, | Nov 01 2000 | Daimler AG | Wind protection device for an open motor vehicle |
6808450, | Dec 04 2002 | Solar powered heating and ventilation system for vehicle | |
7467823, | Apr 08 2003 | Johnson Controls GmbH | Vehicle seat |
7510239, | Mar 17 2003 | GENTHERM GMBH | Air-conditioning device for the passenger area of a vehicle |
7615883, | Jun 06 2007 | Wind driven venturi turbine | |
8020646, | Jul 02 2008 | Toyota Motor Engineering & Manufacturing North America, Inc. | Electric charging roof on an automobile |
8122981, | Apr 16 2007 | HANON SYSTEMS | Solar cell system for vehicles and control method thereof |
8253071, | Dec 11 2005 | GENTHERM GMBH | Flat heating element |
8288693, | Mar 04 2005 | GENTHERM GMBH | Flat heating element |
8388056, | May 08 2009 | JUSTBRAND LIMITED | Heated collapsible article of furniture |
8434314, | Mar 23 2005 | Gentherm Incorporated | Climate control systems and methods |
8456272, | Jul 15 2010 | GENTHERM GMBH | Electric line |
8507831, | Nov 21 2002 | GENTHERM GMBH | Heater for an automotive vehicle and method of forming same |
8525079, | Dec 11 2006 | GENTHERM GMBH | Flat heating element |
8544942, | May 27 2010 | W E T AUTOMOTIVE SYSTEMS, LTD | Heater for an automotive vehicle and method of forming same |
8701800, | Aug 18 2010 | MONARCH POWER CORP | Solar electric vehicle with foldable body panels on a sun tracking chassis |
8702164, | May 27 2010 | W E T AUTOMOTIVE SYSTEMS, LTD | Heater for an automotive vehicle and method of forming same |
8766142, | Nov 21 2002 | GENTHERM GMBH | Heater for an automotive vehicle and method of forming same |
8986085, | Nov 06 1999 | Volkswagen AG | Method and device for controlling equipment for air conditioning a vehicle seat, and control equipment therefor |
8997901, | May 11 2006 | Ford Global Technologies, LLC | Vehicular body panel energy generator system |
9162769, | Apr 06 2010 | GENTHERM GMBH | Occupancy sensor that measures electric current through a heating element |
9191997, | Oct 19 2010 | GENTHERM GMBH | Electrical conductor |
9241373, | Oct 18 2007 | GENTHERM GMBH | Air conditioning device for seats |
9298207, | Sep 14 2011 | GENTHERM GMBH | Temperature control device |
9315133, | Nov 21 2002 | GENTHERM GMBH | Heater for an automotive vehicle and method of forming same |
9420640, | Aug 29 2012 | GENTHERM GMBH | Electrical heating device |
9468045, | Apr 06 2011 | GENTHERM GMBH | Heating device for complexly formed surfaces |
9578690, | Nov 21 2002 | GENTHERM GMBH | Heater for an automotive vehicle and method of forming same |
9657963, | May 27 2010 | GENTHERM CANADA LTD | Heater for an automotive vehicle and method of forming same |
9717115, | Jun 18 2012 | GENTHERM GMBH | Textile or non-textile sheet and/or fabric with electrical function |
9821832, | Dec 20 2012 | GENTHERM GMBH | Fabric with electrical function element |
9944189, | Oct 31 2014 | Hyundai Motor Company | System and method for using solar cell |
9982681, | Oct 10 2013 | COMAIR ROTRON US LLC | Externally programmable fan |
Patent | Priority | Assignee | Title |
5479557, | Oct 24 1994 | Webasto Karosseriesysteme GmbH | Circuit arrangement for power supply of a fan and/or battery by solar generator in a motor vehicle |
5545261, | Jun 01 1994 | Webasto Karosseriesysteme GmbH | Solar roof for motor vehicles |
5934748, | Jan 31 1997 | Daimler AG | Vehicle seat with temperature and ventilation control and method of operation |
6003950, | Sep 14 1995 | Walinov AB | Device for ventilating vehicle chairs |
DE19737636, | |||
DE3540353, | |||
EP393437, | |||
GB2300157, |
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